Cash-strapped ISIS, under siege at home from international bombing campaigns, is looking for softer targets in the west

Beaches which intelligence chiefs say are definitely targeted include resorts in southern France, the Costa del Sol in Spain and both coasts in Italy.

Der Bild quotes an official as saying: "It could be a whole new dimension of terror. Holiday beaches cannot be protected."

Homemade terror weapons

Terror group Islamic State have gone to extreme lengths on their war against the World, designing and producing outrageous homemade weapons which can cause destruction on a large scale.

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Homemade ISIS explosives

ISIS' ally Boko Haram, the terror group from Nigeria, is at the centre of the scare with legal African migrants thought to being recruited for the murder spree.

Seck Pouye, police chief of the Senegalese town of Saly, said: "These people travel regularly to Italy and other places with visas and documents.

"They are not illegal because they are viewed as business people and traders. That is what makes them so dangerous."

In the last six months, Paris and Brussels have been rocked by terror attacks which have killed a combined 165 people.

Patrick Skinner, a security intelligence expert, said the Brussels terrorists' "carjacking" style of attack is almost "impossible" to defend against, with cops "from Liverpiool to Molenbeek to Los Angeles" struggling with it.